New TCL commands defined in Volrend

The script implementing the Volrend application is called volrend. Please refer to this script to understand how these new TCL commands are used.

render

image-widget
Render the data and place the image in image-widget.

redisplay

image-widget
Redisplay without rerendering the data (useful for altering brightness)

openfile

filename
Open the file filename as the volume data.

dump

filename
Dump the rendered data to a TIFF file called filename

trackball

image-widget
Track the motion of the mouse while the mouse buton is pressed, rotating and displaying a bounds box of the volume data in image-widget

translate

image-widget
Translate the rendered image while the mouse button is pressed.

mvhandle

alpha-canvas handle-item Move the item handle-item around the canvas alpha-canvas as the mouse moves whilst any button is pressed.